Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Proto-Slavic
*pȍjāsъ
→
Belarusian
пояс
(inherited)
→
Belarusian
пас
(derived)
→
Russian
пояс
(inherited)